Products, made by Nrdyn.

Nrdyn builds more than one thing. Aldyn is AI software for IRS tax audits; Goaldyn and Fasih are free iOS apps for tasks and habits, and for Classical Arabic vocabulary. All three below, starting with Aldyn.

Aldyn features

Case management

Your entire IRS audit, in one managed case.

Documents, correspondence, and actions live in one place. Aldyn's AI summarizes where the case stands, surfaces what the IRS is asking for, and keeps a clear timeline, so you and your representation always know the next move.

Aldyn's case list, with each IRS notice tracked as its own case: CP504 Final Notice of Intent to Levy, CP2000 Underreported Income, and Form 4564 IDR.
Attorney cross-check

An independent second read of your case file.

Aldyn cross-checks filings and correspondence against the record, then explains in plain language what it found: gaps, inconsistencies, and questions worth raising. An independent second read of your own case file, so you can ask better questions of your representation.

Aldyn's Defense check panel, which runs a case's scope and tax-law analysis against a mail thread and reports what it flagged.
Connected AI email

Every inbox summarised, and searchable by chat.

Connect multiple accounts and Aldyn auto-tags and summarizes every message, then lets you chat with your inbox to find any document, date, or thread instantly, without digging back through months of audit correspondence.

Aldyn's mail view, with Inbox and Sent filters and threads auto-tagged by taxpayer entity, related IRS case, and filing status.
Automatic deadlines

Deadlines created from your email, tracked for you.

When the IRS or your attorney sets a date, Aldyn extracts it automatically and publishes it to a deadline dashboard, with reminders, so a date buried in a thread doesn't slip past you. Always confirm extracted dates against the original notice.

Aldyn's deadline list, each item carrying its entity, attorney, final date, and a priority badge such as critical or urgent.
Why Aldyn

What changes when software runs the audit

The same case, managed in one place instead of scattered across folders, threads and calendars.

Manual / spreadsheets

  • Case organizationFolders and email threads
  • Checking attorney workReviewed by you, unaided
  • Finding an old messageSearch by keyword
  • Tracking deadlinesEntered by hand
  • Knowing case statusRe-read the file

With Aldyn

Recommended
  • Case organizationOne managed case
  • Checking attorney workAI cross-check & flags
  • Finding an old messageChat with your inbox
  • Tracking deadlinesAuto-created & tracked
  • Knowing case statusAI summary on demand

The same five audit tasks, handled manually and in Aldyn.

FAQ

Questions from owners and firms

What is Aldyn?

Aldyn is AI software for IRS tax audits, built by Nrdyn. It manages audit cases, cross-checks your tax attorney's work, runs connected AI email across your inboxes, and automatically creates and tracks deadlines — for business owners facing audits and the firms that represent them.

How does Aldyn help with an IRS audit?

Aldyn centralizes your IRS audit as a managed case: it organizes documents and correspondence, summarizes what's happening, surfaces required actions, and creates deadlines automatically from incoming emails so nothing is missed during the audit.

What does Aldyn's cross-check actually do?

Aldyn cross-checks the documents and correspondence on your case and reports gaps and inconsistencies it finds, so you can raise them with your representation. It is an independent second read of the file, not a legal opinion and not a substitute for professional advice.

What can Aldyn's AI do with my email?

Aldyn connects multiple inboxes and applies AI to auto-tag and summarize messages, let you chat with your inbox to find anything instantly, and automatically extract dates to create deadlines on a tracking dashboard.

iOS App · Free

Goaldyn

A calm, private planner that brings tasks, habits, focus sessions, and goals into one place — everything stored on your iPhone.

  • Tasks. Quick-add with natural language or a voice button. Lists, tags, priorities, subtasks, and swipe to complete.
  • Habits. Flexible schedules, streaks, and consistency stats over 7, 30, 90 days, or all time.
  • Focus. A Pomodoro timer with a live countdown in the Dynamic Island and on the Lock Screen.
Goaldyn's habits screen, showing today's completion and a weekly streak grid.Goaldyn's focus timer mid-session, counting down with pause, reset, and extend controls.
Platform: iOS 17+Price: FreePrivacy: No account, no ads, no tracking

Get Goaldyn on the App Store →

iOS App · Free

Fasih

Not a flashcard app — a Classical Arabic lexicon trainer. 1,107 fully-vocalized dictionary entries, scheduled on-device by spaced repetition.

  • Daily review. A few minutes a day, scheduled by FSRS spaced repetition. A forgiving streak auto-freezes on missed days instead of punishing you.
  • Full dictionary entries. Meanings, plural/singular, verb forms, synonyms, antonyms, root letters, and three example sentences per word with tashkeel.
  • 1,100+ words, 21 categories. Worship, family, verbs, nature, food, and more. Import your own lists from Excel.
Fasih's dictionary entry for the word salah (prayer): its meanings, plural form, synonyms, root, and example sentences with translations.Fasih's library screen listing categories with word counts, including Worship & Faith and Essential Verbs.
Platform: iOS 15+Price: FreePrivacy: 100% offline, no account

Get Fasih on the App Store →

Does Nrdyn make any apps?

Yes — two, both free on the App Store. Goaldyn is a private task, habit, and focus planner that keeps everything on your iPhone with no account. Fasih is a Classical Arabic vocabulary trainer built on spaced repetition, fully offline. Neither collects data or shows ads.

See it on your own case

Book a walkthrough and we'll show you how Aldyn organises a case, reads the correspondence, and tracks the dates.